EP1544087A1 - Vorrichtung zum Anheben und Absenken eines über Rungen abgestützen Daches eines Nutzfahrzeugaufbaus - Google Patents
Vorrichtung zum Anheben und Absenken eines über Rungen abgestützen Daches eines Nutzfahrzeugaufbaus Download PDFInfo
- Publication number
- EP1544087A1 EP1544087A1 EP04028260A EP04028260A EP1544087A1 EP 1544087 A1 EP1544087 A1 EP 1544087A1 EP 04028260 A EP04028260 A EP 04028260A EP 04028260 A EP04028260 A EP 04028260A EP 1544087 A1 EP1544087 A1 EP 1544087A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lifting member
- valve
- piston
- cylinder
- perforated disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000036461 convulsion Effects 0.000 claims 1
- 210000003127 knee Anatomy 0.000 description 9
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 101100498160 Mus musculus Dach1 gene Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/0222—Connecting elements between stanchions, e.g. roof supporting elements, stiffeners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/04—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
Definitions
- the invention relates to a device for lifting and Lowering a stanchion supported roof of a commercial vehicle body, with a fastened to a stanchion Housing, one relative to the housing up and down movable lifting member, a piston and cylinder unit whose Piston and cylinder one movable and one immovable Part form, of which the moving part with the lifting member is connected and the immovable part attached to the housing is, a relative to the housing up and down movable Push member, a trained with a handle toggle drive for moving up and down the push member and a Coupling for non-positive connection of the push and the lifting member such that upon an upward movement of the push member the lifting member and the movable part of the piston and cylinder unit be moved.
- Such a device is from our utility model 298 07 741, in particular Figures 3 and 4, and from our Utility Model 299 07 916 known.
- the lifting member with its lower end over a Axis pivotally connected to the upper end of the push member, that of a first toggle link of a two-link Toggle drive is formed and with its lower end with articulated to the second toggle link at one point is that between an articulated on the housing end of the second Toggle link and the other, free end is, wherein the second toggle link in the area between his other free end and the pivot point of the first toggle link is designed as a handle.
- the lifting member is also on the the lifting member with the thrust member hingedly connecting axis the piston rod of an axially movable piston of a Kolbenund Cylinder unit connected, the cylinder on the Housing articulated and thus axially immovable.
- the pistons and Cylinder unit of the known device is a gas spring, which serves the necessary for lifting the roof reduce manual effort and thus the To facilitate operation of the toggle lever drive.
- the two toggle links In the lowered Position of the roof, the two toggle links extend and the lifting member more or less exactly in the same axial direction, wherein the pivot point of the second Toggle link on the housing above the pivot point of the first toggle link on the second toggle link is.
- the first toggle link is moved up while doing so performs a pivoting movement.
- the upward movement of the first toggle link is transmitted to the lifting member, the in turn moves upwards, the piston of the gas spring at the same time.
- the knee joint axis with respect to the other Pivot axes of the toggle links in an over-center position, which has the consequence that by the of the lifting member in the knee lever introduced load the toggle in its folded up Position are fixed.
- a latch provided in the folded position of the second knee lever cooperates with a counter-holder on the housing, around the second toggle lever in the raised position in addition to secure.
- the latching device also acts in the folded position of the second toggle lever with another Counterholder on the housing together to him in the folded down Secure position.
- the known device that can Roof thus only in the completely raised position and in the be completely fixed lowered position.
- a fixation of the Roof between the two extreme positions can with the well-known Device can not be reached.
- the second toggle link can be pivoted through 180 ° must, one needs for an unhindered movement of the second Toggle link a lateral clearance in horizontal Direction is greater than the length of the second toggle link.
- the second toggle link above his to pivot horizontally under load is such a large lateral free space not or not readily available.
- the device known from the Utility Model 298 08 741 is a stepless adjustment of the liftable and lowerable Roof possible, because the lower end of the lifting member is rotatable connected to a threaded rod on which a nut is arranged on a tube surrounding the threaded rod is fixed, which is rotatably mounted on a support, the is welded to the stanchion.
- the prop has a hole, protrudes through the one approach to the pipe.
- This approach of Pipe is connected via a universal joint with a hand crank. By turning the hand crank, the pipe and thus the Mother turned, which has the consequence that the threaded rod and so that the lifting member can be moved up or down.
- the object of the invention is to provide the generic Further develop device so that the fixation of the roof in any intermediate positions is possible, the lifting and Lowering the roof without regard to the lifting height force, save time and space is feasible and the device still simple in construction, inexpensive to manufacture and reliable in operation.
- the device should also for retrofitting existing commercial vehicle bodies suitable.
- the object of the invention is achieved in that the piston the cylinder into two chambers filled with hydraulic fluid divided, connected by a flow path are in which a shut-off valve is arranged, the between an open position in which the moving part up or downwards, and a closed position in which the moving part against an upward or downward movement is blocked, reversible, and the clutch is a downward movement the thrust member relative to the raised in a Location is available lifting member permits.
- An advantage of the device according to the invention is that the operator the toggle lever drive only for lifting of the roof must press while lowering the roof only switch the shut-off valve and thus no significant Must apply force.
- the roof can be lowered very quickly because the roof is lowered automatically, once the shut-off valve is open.
- the middle section 1b is the housing 1 by a cover plate attached to it 2 closed.
- the cover plate 2 is suitable as a carrier Company logos and conceals the underlying moving parts, so that they can not be reached by the operator and the operator is not on the hand or the Can hurt fingers.
- the upper portion 1c of the housing 1 forms a guide channel in which a lifting member 3 in upward and down direction is slidably received.
- the lifting member 3 is hinged to a bearing block 4 connected in the fully lowered position the lifting member 3, as shown in Figures 1 and 2, arranged immediately above the upper end of the housing 1 is.
- the bearing block 4 can be fastened to the roof, not shown and thus provides the link between the lifting member 3 and the raised and lowered roof.
- An upper Section 3a of the lifting member 3 is provided with a lower portion 3b of the lifting member 3 connected via a connecting pin 5, as can be seen in particular in FIGS. 4 and 15.
- Of the lower portion 3b of the lifting member 3 is a tube with a round Cross section formed.
- the upper portion 3a of the lifting member 3 has a pin 6 which in a guide slot 7 in the wall of the upper portion 1c of the housing 1 protrudes and in an upward or downward movement of the lifting member 1 in the guide slot 7 moves along.
- the pin 6 and the Guide slot 7 serve as a stroke limiter for the lifting member.
- the housing 1 is also a piston and cylinder unit 8, partially visible in Figures 3 and 4 and in Fig. 5 is shown in full length.
- the piston and Cylinder unit 8 has a cylinder 9 and a piston 10 on, which in turn one arranged in the interior of the cylinder 9 Piston bottom 11 and an attached piston rod 12th having, from the interior of the cylinder 9 by a Cylinder bottom 13 is led out down.
- the piston rod 12 At her bottom End is the piston rod 12 by means of a substantially cylindrical connector 14 and a bolt with Fastening clip 15 attached to the lower end of the housing 1.
- the Cylinder 9 is compared to the fixed piston 10 axially displaceable.
- the means of a seal 16 against the inner wall the cylinder 9 sealed piston crown 11 divides the Interior of the cylinder 9 in an upper chamber 17 and a lower chamber 18, which communicates with the upper chamber 17 via a Flow path 19 communicates, in which a controllable Check valve 20 for opening and closing the flow path 19 is arranged.
- the flow path 19 has a piston bottom 11 penetrating first flow channel 19 a and a immediately adjacent to the first flow channel 19a, formed in the piston rod 12, the second flow channel 19b, which opens into the lower chamber 18.
- the check valve 20 has a relative to the piston head 11 movable conical valve body 20a, one on the valve body 20a attached valve stem 20b and a conically shaped Valve seat 20 c, which is formed in the piston head 11 and a upper end portion of the going through the piston head 11 limited first flow channel 19a.
- the check valve 20 In the closed position the check valve 20 is the valve body 20 a at the Valve seat 20b on, and in the open position of the check valve 20 is the valve body 20a of the valve seat 20b lifted.
- the piston rod 12 is hollow throughout and the Valve stem 20b is coaxial in the cavity of the piston rod 12 and is axially relative to the piston rod 12 therein displaced.
- a seal 21 seals the valve stem 20b against the piston rod 12 from.
- the second flow channel 19b in the piston rod 12 passes through an enlarged end portion the cavity of the piston rod 12 and includes an annular space 19 c, which is arranged around the valve stem 20 b around and with connected radially extending connecting channels 19 d, the extend through the wall of the piston rod 12 and at the Outside surface in a section that ends at the lower chamber 18 of the cylinder 9 is adjacent.
- the first flow channel 19a in the piston head 11 comprises an annular space 19e, which surrounds the valve stem 20 b is arranged around and in the open position of the Check valve 20 via the between the valve body 20c and the annular gap formed with the valve seat 20b with the upper chamber 17 of the cylinder 9 is connected.
- the lower end of the valve stem 20b projects beyond the lower end of the piston rod 12 in the closed position of the check valve 20 by a Amount that is greater than the valve lift that the valve body 20a during its movement from the closed position into the Open position of the valve covers, in particular from the Figures 8 and 9 can be seen.
- Both chambers 17 and 18 of the cylinder 9 and the flow channels 19a and 19b are completely under pressure filled hydraulic fluid.
- an upward projecting threaded pin 22 is in engagement with a in lower end of the lifting member 3 formed internal thread, so, that the lifting member 3 and the cylinder 9 firmly connected and, as a result, collectively move up and down are.
- An upward movement of the cylinder 9 relative to the Piston 10 has the consequence that in the lower chamber 18 and the flow channels 19a and 19b located hydraulic fluid pushes the check valve 20 in the open position and escapes into the upper chamber 17.
- the lifting member 3 is a downward force on the cylinder.
- a push member 23 having a U-shaped cross section is housed in the middle and lower housing section 1b and 1a.
- the thrust member 23 is at its upper end via a below described clutch 24 frictionally with the lower portion 3b of the lifting member 3 connectable.
- the lower portion 3b of the lifting member 3rd encompassed by the thrust member 23.
- the lower end of the push member 23 is fixed via an axle 29 with a slider 25 connected, on the piston rod 12 in the longitudinal direction slidably guided. In the area between the upper end the cylinder 9 and the slider 25 engages around the push member 23 the cylinder 9 and the piston rod 12th
- a knee lever drive has two toggle links 26 and 27, of which a toggle member 26 with its upper end a pivot point 30 hingedly connected to the housing 1 is and of which the other toggle member 27 with his lower end about the axis 29 hinged to the slider 25th and thus hinged to the lower end of the push member 23rd connected is.
- the upper end of the toggle member 27 is with articulated to the knee lever 26 at an articulation point 31, the between the hinged to the housing 1 upper End of the toggle member 26 and the lower free end lies.
- the toggle link 26 is in the area between the Anschstelle 31 of the toggle member 27 and its lower free end formed as a handle 28.
- a bearing plate 33 fixed to the housing 1a has a hole on, through which the piston rod 12 extends with play, such that the piston rod 12 relative to the bearing plate 33rd movable in the longitudinal direction without appreciable frictional resistance is.
- the bearing plate 33 prevents buckling of the piston rod 12th
- a bracket 34 is in the vicinity of the upper end of the push member 23 attached to the housing section 1b.
- the bracket 34 surrounds the Push member 23 such that it during its up and down movement is guided by the bracket 34.
- the coupling 24 for non-positive connection of the thrust member 23 and the lifting member 3 comprises a perforated plate 35, the one has central hole through which the lower section 3b of the lifting member 3 extends.
- the perforated disc 35 is on the lower portion 3b of the lifting member 3 above the upper end arranged the thrust member 23.
- the perforated disc 35 consists of two superimposed Disc springs, which are slightly curved, with their concave Side down to the canting effect described below to increase.
- the perforated disk 35 could also be made a single or more than two disc elements be flat or curved, as in the example could.
- the upper end of the thrust member 23 is chamfered.
- the hole of the perforated disc 35 is dimensioned so that when the Perforated disk 35 in an approximately horizontal position, in the the longitudinal axis of the lower portion 3b of the lifting member 3rd perpendicular to the plane of the perforated disc 35, the Perforated disk 35 largely free of friction on the lower Section 3b of the lifting member 3 is displaceable and that the Perforated disk 35 is tiltable in an inclined position in which they are parallel or approximately parallel to the beveled upper End of the thrust member 23 extends and the edge of the hole of Disc 35 partially on the surface of the lower section 3b of the lifting member 3 is applied.
- the transition between the Plane of the disc 35 parallel surface and the edge of her Holes form angular edges that are hardened.
- the clutch 24 also has an abutment serving Support bracket 36, the distance above the bracket 34th arranged and fixed to the central housing portion 1b.
- the support bracket 36 has a recess 36 a through which the bottom section 3b of the lifting member 3 passed with play is such that the lower portion 3b relative to the Support bracket 36 is slidable.
- the support bracket 36 thus has also a guide function for the lifting member.
- the coupling 24 has a conical compression spring 37, whose turns around the lower portion 3b of the lifting member. 3 are guided around, such that the spring 37 relative to the lower portion 3b of the lifting member 3 are compressed can and relax again.
- the compression spring 37 has a upper end, which bears against the underside of the support bracket 36, and a lower end, which on the top of the perforated disc 35 is applied.
- the compression spring 37 presses the perforated disc 35 in Direction of the bracket 34, on which the perforated disc 35 in her bottom layer rests horizontally, as shown in FIG. 12. Of the Bracket 34 thus forms a lower stroke limit for the Perforated disk 35. Upwards, the stroke of the perforated disk 35 through limits the juxtaposition of the turns of compression spring 37, as Fig. 13 illustrates.
- the clutch 24 functions such that when starting from the situation shown in Fig. 12, the push member 23 upwards is moved, the perforated disc 35 from the upper bevelled End of the thrust member 23 is lifted from the bracket 34, wherein the perforated disc 35 tilts in an inclined position, the slope the upper tapered end of the thrust member 23 corresponds or this is approximated. Claw in this inclined position the edges of the hole edge are partially in the surface of the lower portion 3b of the lifting member, so that in another Movement of the thrust member 23 up the lifting member 3 of the together with the thrust member 23 moving perforated disc 35 is taken. While the push member 23, the perforated disc 35 and the lifting member 3 move upward together, is the compression spring 37 increasingly compressed. The upward movement the thrust member 23, the perforated disc 35 and the lifting member 3 continues until the turns of the spring 37 abut each other, that is, until the compression spring 37 "on Block "is.
- the thrust member 23 together with the perforated disc 35 are lowered to the starting position.
- the perforated disc 35 of the compression spring 37 in a nearly horizontal position urged in the the edges of the hole edge out of engagement with the surface of the lower portion 3b of the lifting member 3 are, what the result has that the perforated disc 35 together with the push member 23 move relative to the lifting member 3 down.
- the downward movement of the perforated disc 35 is characterized limited that it rests on the top of the bracket 34.
- An actuator for the check valve 20 has an actuating lever 38 which on the toggle link 26th is pivotally mounted.
- the operating lever 38 has a Actuating arm 39 and a handle arm 40, the free end as Ring is formed.
- the handle arm 40 is in the folded State of the operating lever 38 in an opening 41, the in the wall of the toggle member 26 is formed.
- the operating lever 38 is shown in Fig. 1 and 6, respectively folded position in the shown in Fig. 2 and 7, unfolded position pivoted by the ring of the handle arm 40 grasped with the finger and the handle arm 40 swung out becomes.
- the operating arm 39 of the operating lever 38 protrudes in the folded state of the toggle member 26 in a Hole 42 in the connector 14, wherein the actuating arm 39 extends below the lower end of the valve stem 20b.
- the operating lever 38 is, as mentioned, rotatably on the toggle lever member 26 stored. Therefore, the toggle member 26 is off its folded position in the unfolded position pivoted, the operating lever 38 moves together with the toggle link 26 in the unfolded position of the Knee lever member 26, as shown in FIG. 3. In the unfolded Position of the toggle member 26 is therefore the operating lever 38 out of engagement with the valve stem 20b, as a result in the unfolded position of the toggle member 26 is not can be actuated by means of the actuating lever 38.
- the roof may only be folded Knee lever member 26 are lowered.
- the dimensions of the hole 42 are chosen so small that when unfolded toggle member 26, the lower end of Valve stem 20b can not be reached with the finger.
- the lifting member 3 and thus the roof By repeatedly unfolding and re-folding the toggle links 26 and 27, the lifting member 3 and thus the roof gradually raised until they reach their final position, by the investment of the pin 6 at the upper end of the guide slot 7 is determined.
- the total stroke of the lifting member 3 and thus the roof about 400 mm.
- FIGS. 16 to 20 are within the scope of the invention Modifications are shown, which are described in more detail below be, taking for those parts, to those in the figures 1 to 15 are the same or similar parts shown the same reference numerals as used in Figures 1 to 15 become.
- One modification relates to the design of the upper end the push member 23.
- the bridge is between the two legs of the thrust member 23 lying wall upwards extended to an eyelet 50 with a transverse slot 51 whose width is greater than the thickness of the perforated disc 35, which also in the modified embodiment of two superimposed disc springs.
- the upper ends of the two legs of the push member 23 are up to a respective Edge even, i. not beveled.
- a circle segment of the perforated disc 35 engages in the slot 51 of the eyelet 50 of the push member 23 on.
- Fig. 19 shows the Condition in which the perforated disc 35 together with the push member 23 move relative to the lifting member 3 down. How out Fig. 19 can be seen, the perforated disc 35 at shutdown the push member 23 is not brought into the horizontal position, because the angle change between canting and free shifting in the downward direction is minimal and the inclination the perforated disc 35 also forced by the compression spring 37 ' becomes.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Fluid-Pressure Circuits (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
- Fig. 1
- eine perspektivische Darstellung einer Vorrichtung zum Anheben und Absenken eines über Rungen abgestützten Daches eines Nutzfahrzeugaufbaus, wobei die Runge, an dem das Gehäuse der Vorrichtung zu befestigen ist, und das Dach des Nutzfahrzeugaufbaus nicht gezeigt sind und wobei das Hubglied in der abgesenkten Stellung ist und die Kniehebelglieder des Kniehebelantriebs in der eingeklappten Stellung sind;
- Fig. 2
- eine ähnliche Darstellung wie in Fig. 1, wobei jedoch eine in einem mittleren Abschnitt des Gehäuses vorgesehene Abdeckplatte des Gehäuses entfernt ist, um die Kupplung zwischen dem Schubglied und dem Hubglied sichtbar zu machen, und wobei der Betätigungshebel für das Absperrventil in einer gegenüber der in Fig. 1 gezeigten Stellung herausgeschwenkten Stellung ist, in der das Absperrventil in seiner Offenstellung ist;
- Fig. 3
- eine ähnliche Darstellung wie in Fig. 1, wobei jedoch das Hubglied in einer angehobenen Stellung ist und die Kniehebelglieder in der ausgeklappten Stellung sind;
- Fig. 4
- eine ähnliche Darstellung wie in Fig. 3, wobei jedoch das Gehäuse weggelassen ist, um das Hubglied und das Schubglied und die Kupplung zwischen ihnen sichtbar zu machen;
- Fig. 5
- die Kolben- und Zylindereinheit im Längsschnitt;
- Fig. 6
- die in Fig. 1 eingekreiste Einzelheit A in vergrößerter Darstellung;
- Fig. 7
- die in Fig. 2 eingekreiste Einzelheit B in vergrößerter Darstellung;
- Fig. 8
- eine Schnittdarstellung der in Fig. 6 dargestellten Einzelheit A, wobei der Betätigungshebel für das Absperrventil in der eingeklappten Stellung ist, in der das Absperrventil in der Geschlossenstellung ist;
- Fig. 9
- eine Schnittdarstellung der in Fig. 7 dargestellten Einzelheit B, wobei der Betätigungshebel für das Absperrventil in der herausgeschwenkten Stellung ist, in der das Absperrventil in der Offenstellung ist;
- Fig. 10
- die in Fig. 3 eingekreiste Einzelheit C in vergrößerter Darstellung;
- Fig. 11
- die in Fig. 6 dargestellte Einzelheit A, wobei jedoch das die Handhabe aufweisende Kniehebelglied weggelassen ist, um die darunterliegenden Bauteile sichtbar zu machen;
- Fig. 12
- die in Fig. 2 eingekreiste Einzelheit D in vergrößerter Darstellung;
- Fig. 13
- eine ähnliche Darstellung wie in Fig. 12, wobei jedoch das Schubglied und das Hubglied in einer gegenüber der in Fig. 12 gezeigten Stellung angehobenen Stellung sind;
- Fig. 14
- die in Fig. 4 eingekreiste Einzelheit E in vergrößerter Darstellung;
- Fig. 15
- die in Fig. 4 eingekreiste Einzelheit F in vergrößerter Darstellung;
- Fig. 16
- eine ähnliche Darstellung wie in Fig. 12, jedoch von einem anderen Blickwinkel und mit einer Modifikation insbesondere des Schubgliedes;
- Fig. 17
- einen Schnitt durch die Vorrichtung im Bereich der Kupplung, wobei das modifizierte Schubglied und die Lochscheibe in ihrer unteren Ausgangsstellung gezeigt sind;
- Fig. 18
- eine ähnliche Darstellung wie in Fig. 17, jedoch nachdem die Lochscheibe von der modifizierten Schubstange bis zu ihrer Verkantung einseitig angehoben worden ist;
- Fig. 19
- eine ähnliche Darstellung wie in Fig. 18, wobei jedoch die Lochscheibe von dem modifizierten Schubglied aus der Verkantung gelöst und relativ zu dem Hubglied abwärts bewegt wird; und
- Fig. 20
- zwei perspektivische Darstellungen des oberen Endabschnitts des modifizierten Schubgliedes aus verschiedenen Blickwinkeln.
Claims (19)
- Vorrichtung zum Anheben und Absenken eines über Rungen abgestützten Daches eines Nutzfahrzeugaufbaus, mit einem an einer Runge befestigbaren Gehäuse (1), einem relativ zu dem Gehäuse auf- und abwärts bewegbaren Hubglied (3), einer Kolben- und Zylindereinheit (9, 10), deren Kolben (10) und Zylinder (9) einen beweglichen und einen unbeweglichen Teil bilden, von denen der bewegliche Teil mit dem Hubglied (3) verbunden ist und der unbewegliche Teil am Gehäuse (1) befestigt ist, einem relativ zu dem Gehäuse (1) auf- und abwärts bewegbaren Schubglied (23), einem mit einer Handhabe (28) ausgebildeten Kniehebelantrieb zum Auf- und Abwärtsbewegen des Schubgliedes (23) und einer Kupplung (24) zum kraftschlüssigen Verbinden des Schubund des Hubgliedes (23; 3) derart, daß bei einer Aufwärtsbewegung des Schubgliedes (23) das Hubglied (3) und der bewegliche Teil der Kolben- und Zylindereinheit (9, 10) mitbewegt werden, dadurch gekennzeichnet, daß der Kolben (10) den Zylinder (9) in zwei mit Hydraulikflüssigkeit gefüllte Kammern (17, 18) unterteilt, die über einen Strömungsweg (19) miteinander verbunden sind, in dem ein Absperrventil (20) angeordnet ist, das zwischen einer Offenstellung, in der sich der bewegliche Teil (9) aufoder abwärts bewegen kann, und einer Geschlossenstellung, in der der bewegliche Teil (9) gegen eine Aufwärts- oder Abwärtsbewegung blockiert ist, umschaltbar ist, und die Kupplung (24) eine Abwärtsbewegung des Schubgliedes (23) relativ zu dem in einer angehobenen Lage sich befindenden Hubglied (3) zuläßt.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Strömungsweg (19) einen im Kolbenboden (11) des Kolbens (10) gebildeten Strömungskanal (19a) aufweist und das Absperrventil (20) einen im Kolbenboden (11) gebildeten Ventilsitz (20c), der einen Abschnitt des Kanals (19a) begrenzt, und einen relativ zum Kolbenboden (11) beweglichen Ventilkörper (20a) aufweist, wobei in der Geschlossenstellung des Absperrventils (20) der Ventilkörper (20a) in Anlage mit dem Ventilsitz (20c) ist und in der Offenstellung des Absperrventils (20) der Ventilkörper (20a) vom Ventilsitz (20c) abgehoben ist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Ventilkörper (20a) an einem Ende eines Ventilschaftes (20b) angeordnet ist, der aus dem Zylinder (9) herausgeführt ist und ein außerhalb des Zylinders (9) liegendes Ende hat, das mit einer Kraft beaufschlagbar ist, die den Ventilschaft (20b) zusammen mit dem Ventilkörper (20a) in Längsrichtung des Ventilschaftes (20b) relativ zu dem Kolbenboden (11) verschiebt, wobei sich der Ventilkörper (20a) vom Ventilsitz (20c) abhebt.3
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Kolbenboden (11) an einem Ende einer hohlen Kolbenstange (12) befestigt ist, die aus dem Zylinder (9) herausgeführt ist und ein außerhalb des Zylinders (9) liegendes Ende hat, das wenigstens in der Geschlossenstellung des Ventils (20) näher am Zylinder (9) als das Ende des Ventilschaftes (20) ist, der sich durch den Hohlraum der Kolbenstange (12) erstreckt und relativ zu der Kolbenstange (12) verschiebbar ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Strömungskanal (19a) im Kolbenboden (11) mit einem Strömungskanal (19b) in der Kolbenstange (12) verbunden ist und der Strömungskanal (19a) in der Kolbenstange (12) in eine (18) der beiden Kammern (17, 18) des Zylinders (9) mündet.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Strömungskanal (19b) in der Kolbenstange (19) im wesentlichen von einem Endabschnitt des Hohlraumes der Kolbenstange (12) gebildet ist und einen Ringraum (19c) umfaßt, der um den Ventilschaft (20b) herum angeordnet ist und mit wenigstens einem Verbindungskanal (19d) verbunden ist, der sich durch die Kolbenstange (12) erstreckt und an deren Außenfläche in einem Abschnitt endet, der an die eine Kammer (18) des Zylinders (9) grenzt.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Absperrventil (20) ein Rückschlagventil ist, das beim Aufwärtsbewegen des beweglichen Teiles (9) der Kolben- und Zylindereinheit (9, 10) von der Hydraulikflüssigkeit einer Kammer (18) in seine Offenstellung gedrängt wird und in einer Ruhelage des beweglichen Teiles (9) in der Geschlossenstellung durch eine Kraft gehalten wird, die durch eine manuell aufbringbare Gegenkraft überwindbar ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kolben (10) der Kolbenund Zylindereinheit (9, 10) am Gehäuse (1) befestigt ist und der Zylinder (9) der Kolben- und Zylindereinheit (9, 10) mit dem Hubglied (3) verbunden ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kniehebelantrieb zwei Kniehebelglieder (26, 27) aufweist, von denen das eine Kniehebelglied (26) an einem Ende an dem Gehäuse (1) angelenkt ist, und das andere Kniehebelglied (27) an einem Ende gelenkig mit dem Schubglied (23) verbunden ist und an seinem anderen Ende an einer zwischen dem einen und dem anderen, freien Ende des einen Kniehebelgliedes (26) liegenden Anlenkstelle mit dem einen Kniehebelglied (26) gelenkig verbunden ist, das im Bereich zwischen der Anlenkstelle und seinem anderen, freien Ende als Handhabe (28) ausgebildet ist, wobei das eine Kniehebelglied (26) an dem Gehäuse (1) an einer Stelle angelenkt ist, die oberhalb einer Stelle ist, an der das andere Kniehebelglied (27) gelenkig mit dem Schubglied (23) verbunden ist.
- Vorrichtung nach Anspruch 9, wenn rückbezogen auf Anspruch 4, dadurch gekennzeichnet, daß das andere Kniehebelglied (27) an seinem einen Ende auch mit einem Gleitstück (25) verbunden ist, das auf der Kolbenstange (12) in deren Längsrichtung verschiebbar geführt ist.
- Vorrichtung nach einem der Ansprüche 3 bis 10, dadurch gekennzeichnet, daß das eine Kniehebelglied (26) einen schwenkbar an ihm gelagerten Betätigungshebel (38) trägt, der einen Betätigungsarm (39) hat, der im eingeklappten Zustand des einen Kniehebelgliedes (26) mit dem Ende des Ventilschaftes (20b) in Anlage bringbar ist, wobei die Kraft, mit der das Ende des Ventilschaftes (20b) beaufschlagbar ist, um den Ventilkörper (20a) von seinem Sitz (20c) abzuheben, von dem Betätigungsarm (39) auf das Ende des Ventilschaftes (20b) übertragen wird und aus einer Schwenkbewegung des Betätigungshebels (38) resultiert.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens im Bereich der Kupplung (24) das Schubglied (23) das Hubglied (3) umgreift und ein oberes Ende hat, das abgeschrägt ist, und die Kupplung (24) eine auf dem Hubglied (3) verschiebbare Lochscheibe (35), die an das abgeschrägte Ende des Schubgliedes in der dem abgeschrägten Ende entsprechenden Schrägstellung anlegbar ist, und eine Druckfeder (37) aufweist, die zwischen der Lochscheibe (35) und einem an dem Gehäuse befestigten Widerlager (36) auf der von dem abgeschrägten Ende des Schubgliedes abgekehrten Seite der Lochscheibe (35) angeordnet ist, wobei, wenn das Schubglied (23) aufwärts bewegt wird, die Lochscheibe (35) in Schrägstellung gegen die Wirkung der Feder (37) nach oben mitbewegt wird und an dem Hubglied (3) verkantet, derart, daß die Lochscheibe (35) das Hubglied (3) nach oben mitnimmt, und wobei, wenn das Schubglied (23) relativ zu dem Hubglied (3) abwärts bewegt wird, die Druckfeder (37) die Lochscheibe (35) aus ihrer Schrägstellung in eine Horizontalstellung drängt, in der sie sich relativ zu dem Hubglied (3) abwärts bewegen kann.
- Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß wenigstens im Bereich der Kupplung (24) das Schubglied (23) das Hubglied (3) umgreift, und die Kupplung (24) eine auf dem Hubglied (3) verschiebbare Lochscheibe (35) und eine Druckfeder (37') aufweist, die zwischen der Lochscheibe (35) und einem an dem Gehäuse befestigten Widerlager (36) angeordnet ist, wobei, wenn das Schubglied (23) aufwärts bewegt wird, die Lochscheibe (35) bis zu ihrer Verkantung mit dem Hubglied (3) von dem Schubglied (23) einseitig angehoben wird und im Zustand ihrer Verkantung mit dem Hubglied (3) das Hubglied (3) nach oben mitnimmt, und wobei, wenn das Schubglied (23) relativ zu dem Hubglied (3) abwärts bewegt wird, das Schubglied (23) die Lochscheibe (35) durch Verringerung ihrer Schräglage aus der Verkantung mit dem Hubglied (3) löst, derart, daß sich danach die Lochscheibe (35) zusammen mit dem Schubglied (23) relativ zu dem Hubglied (3) abwärts bewegen.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß an einem oberen Ende des Schubgliedes (23) eine Öse (50) mit einem Loch (51) ausgebildet ist, in das ein Segment der Lochscheibe (35) eingreift, wobei, wenn das Schubglied (23) aufwärts bewegt wird, ein unterer Rand (53a) des Loches (51) der Öse (50) an der Unterseite der Lochscheibe (35) anliegt, und, wenn das Schubglied (23) abwärts bewegt wird, ein oberer Rand (53b) des Loches (51) an der Oberseite der Lochscheibe (35) anliegt.
- Vorrichtung nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, daß die Lochscheibe (35) aus mindestens zwei aufeinanderliegenden Tellerfedern besteht, die gewölbt sind, wobei ihre konkave Seite abwärts zeigt.
- Vorrichtung nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, daß die Druckfeder (37, 37') eine Schraubenfeder ist, die das Hubglied (3) umringt und mit ihrem unteren Ende auf der Lochscheibe (35) anliegt und sich mit ihrem oberen Ende direkt oder indirekt an dem Widerlager (36) abstützt.
- Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß das Widerlager als Bügel (36) ausgebildet ist und zwischen dem Bügel (36) und der Druckfeder (37') eine Stützscheibe (52) mit Loch angeordnet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Hubglied (3) und das Gehäuse (1) Anschlagflächen aufweisen, die aufeinandertreffen, um die Auf- und Abwärtsbewegung des Hubgliedes (3) zu begrenzen.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die Anschlagflächen an einem von dem Hubglied (3) abstehenden Zapfen (6), der in einem im Gehäuse (1) gebildeten Längsschlitz (7) bewegbar ist, und an den sich gegenüberliegenden Enden des Längsschlitzes (7) gebildet sind.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE20319531U DE20319531U1 (de) | 2003-12-16 | 2003-12-16 | Vorrichtung zum Anheben und Absenken eines über Rungen abgestützten Daches eines Nutzfahrzeugaufbaus |
DE20319531U | 2003-12-16 | ||
DE200420008414 DE202004008414U1 (de) | 2004-05-27 | 2004-05-27 | Vorrichtung zum Anheben und Absenken eines über Rungen abgestützten Daches eines Nutzfahrzeugaufbaus |
DE202004008414U | 2004-05-27 |
Publications (2)
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EP1544087A1 true EP1544087A1 (de) | 2005-06-22 |
EP1544087B1 EP1544087B1 (de) | 2007-10-10 |
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EP04028260A Active EP1544087B1 (de) | 2003-12-16 | 2004-11-29 | Vorrichtung zum Anheben und Absenken eines über Rungen abgestützen Daches eines Nutzfahrzeugaufbaus |
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EP (1) | EP1544087B1 (de) |
AT (1) | ATE375285T1 (de) |
DE (1) | DE502004005192D1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202011105778U1 (de) | 2010-09-21 | 2012-01-13 | Jesús Garcia Calvo | Selbstverankernde hydraulische Hebe-/Senkvorrichtung |
DE102010037553A1 (de) * | 2010-09-15 | 2012-03-15 | F. Hesterberg & Söhne Gmbh & Co. Kg | Vorrichtung zum Anheben und Absenken eines auf teleskopierbaren Rungen abgestützten Daches eines Nutzfahrzeugs |
CN107056034A (zh) * | 2017-04-18 | 2017-08-18 | 正安鑫旺钢化玻璃有限公司 | 一种钢化玻璃炉用自动升降炉门 |
EP3275710A1 (de) * | 2016-07-28 | 2018-01-31 | Schmitz Cargobull AG | Gelenk mit schiebling |
EP3964429A1 (de) * | 2020-09-02 | 2022-03-09 | Schmitz Cargobull AG | Planenaufbau und nutzfahrzeug mit plankenplane |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3138338A1 (de) * | 1981-09-26 | 1983-04-07 | Claus H. 2072 Bargteheide Müller | "nutzfahrzeug, wie lastkraftwagen oder anhaenger" |
DE19509590C1 (de) * | 1995-03-16 | 1996-09-26 | Schmitz Anhaenger Fahrzeugbau | Höhenverstellbare Runge |
DE29907916U1 (de) | 1999-05-04 | 1999-07-15 | F. Hesterberg & Söhne GmbH & Co KG, 58256 Ennepetal | Mechanische Vorrichtung zum Heben eines auf Eckrungen ruhenden Dachs eines Nutzfahrzeugaufbaus |
-
2004
- 2004-11-29 EP EP04028260A patent/EP1544087B1/de active Active
- 2004-11-29 AT AT04028260T patent/ATE375285T1/de not_active IP Right Cessation
- 2004-11-29 DE DE502004005192T patent/DE502004005192D1/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3138338A1 (de) * | 1981-09-26 | 1983-04-07 | Claus H. 2072 Bargteheide Müller | "nutzfahrzeug, wie lastkraftwagen oder anhaenger" |
DE19509590C1 (de) * | 1995-03-16 | 1996-09-26 | Schmitz Anhaenger Fahrzeugbau | Höhenverstellbare Runge |
DE29907916U1 (de) | 1999-05-04 | 1999-07-15 | F. Hesterberg & Söhne GmbH & Co KG, 58256 Ennepetal | Mechanische Vorrichtung zum Heben eines auf Eckrungen ruhenden Dachs eines Nutzfahrzeugaufbaus |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010037553A1 (de) * | 2010-09-15 | 2012-03-15 | F. Hesterberg & Söhne Gmbh & Co. Kg | Vorrichtung zum Anheben und Absenken eines auf teleskopierbaren Rungen abgestützten Daches eines Nutzfahrzeugs |
EP2431260A3 (de) * | 2010-09-15 | 2015-09-16 | F. HESTERBERG & SÖHNE GmbH & Co. KG | Vorrichtung zum Anheben und Absenken eines auf teleskopierbaren Rungen abgestützten Dachs eines Nutzfahrzeugs |
DE202011105778U1 (de) | 2010-09-21 | 2012-01-13 | Jesús Garcia Calvo | Selbstverankernde hydraulische Hebe-/Senkvorrichtung |
EP3275710A1 (de) * | 2016-07-28 | 2018-01-31 | Schmitz Cargobull AG | Gelenk mit schiebling |
CN107056034A (zh) * | 2017-04-18 | 2017-08-18 | 正安鑫旺钢化玻璃有限公司 | 一种钢化玻璃炉用自动升降炉门 |
EP3964429A1 (de) * | 2020-09-02 | 2022-03-09 | Schmitz Cargobull AG | Planenaufbau und nutzfahrzeug mit plankenplane |
Also Published As
Publication number | Publication date |
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DE502004005192D1 (de) | 2007-11-22 |
EP1544087B1 (de) | 2007-10-10 |
ATE375285T1 (de) | 2007-10-15 |
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